| Title: | Some new cardinal inequalities involving a cardinal function less than the spread and the density (English) | 
| Author: | Sun, Shu Hao | 
| Author: | Choo, Koo Guan | 
| Language: | English | 
| Journal: | Commentationes Mathematicae Universitatis Carolinae | 
| ISSN: | 0010-2628 (print) | 
| ISSN: | 1213-7243 (online) | 
| Volume: | 31 | 
| Issue: | 2 | 
| Year: | 1990 | 
| Pages: | 395-401 | 
| . | 
| Category: | math | 
| . | 
| MSC: | 54A25 | 
| idZBL: | Zbl 0717.54002 | 
| idMR: | MR1077911 | 
| . | 
| Date available: | 2008-06-05T21:44:25Z | 
| Last updated: | 2012-04-28 | 
| Stable URL: | http://hdl.handle.net/10338.dmlcz/106870 | 
| . | 
| Reference: | [1] R. Engelking: General Topology.PWN, Warszawa, 1977. Zbl 0373.54002, MR 0500780 | 
| Reference: | [2] R. E. Hodel: Cardinal functions I.Handbook of Set-Theoretic Topology (K. Kunen and J. E. Vaughan, eds.), North-Holland, 1984, 1-61. Zbl 0559.54003, MR 0776620 | 
| Reference: | [3] I. Juhasz: Cardinal functions in topology - ten years later.Math. Centrum, Amsterdam, 1980. Zbl 0479.54001, MR 0576927 | 
| Reference: | [4] X. S. Liu: Two topological cardinal functions.(in Chinese), Acta Math. Sinica 29 (1987), 494-497. MR 0867698 | 
| Reference: | [5] S. H. Sun: Two new topological cardinal inequalities.Proc. Amer. Math. Soc. 104 (1988), 313-316. Zbl 0669.54002, MR 0958090 | 
| Reference: | [6] S. H. Liu Y. M. Wang: A strengthened topological cardinal inequality.Bull Aust. Math. Soc. 32 (1985), 375-378.      MR 0819569 | 
| . |